Informative Advertising: Competition or Cooperation?

Working Paper 033
Author(s): 
Witness Simbanegavi
Publication date: 
January, 2006
Journal: 
2009, Journal of Industrial Economics, (LVII), 147-166
Classification-JEL: 

I compare the outcome when firms semicollude on advertising to the outcome in the Grossman and Shapiro (1984) model of informative advertising. I show that advertising is lower but prices and profits are higher under semicollusion on advertising. I also show that semicollusion on advertising is detrimental to welfare. Although firms earn higher profits when colluding on advertising, fewer consumers are informed, and as a result, welfare is lower. Compared to semicollusion on price, semicollusion on advertising is not always less profitable. Hence I lend theoretical support to empirical studies that find evidence of collusion on advertising rather than price.

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